The bottom adopts an integrated die-casting process, thick bottom and thin wall, long heat storage time12-Inch Frying Pan - The right cast iron pan to sear, saute, bake, broil, braise, fry or grill - Safe to use in the oven, stove, grill or over a campfire - How to Prepare and Cook - Dry the cast iron pan and wipe the inside of the skillet repeatedly with cooking oil to keep the grease in the pan for 5-10 hours, then ready to be use - How to caring for our Cast Iron Grilled Pan - Keep our cast iron skillet dried then hang or store in a dry place; In order to prevent rust, apply cooking oil to the surface for better results